What is the energy associated with electromagnetic radiation of 6.34 x 10^15 hertz what is the frequency of one of the bands of the sodium emission spectrum that has a wavelength of 585 nanometers.

Omg imgonnafailnfiedkla use complete sentences to explain how the mass of hydrogen is conserved during cellular respiration.

What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays

Why is it important for scientists to review and repeat the work of other scientists? 1.a scientific theory must be tested three times before it is proven. 2.the scientific method only applies to repeated experiments. 3.an experiment may have had errors that the scientists didn't recognize. 4.the results of individual scientists may be influenced by bias. 5.an experiment must be performed twice before the data can be analyzed.